Hans on IoT

ThingSpeak, MATLAB, and the Internet of Things

Subscribe to ThingSpeak IoT Data using MQTT

Posted by Hans Scharler,

The ThingSpeak IoT service now supports MQTT subscriptions to receive instant updates when a ThingSpeak channel gets updated. MQTT is a powerful standard for IoT systems. ThingSpeak enables clients to update and receive updates from channel feeds via the ThingSpeak MQTT broker. MQTT is a publish/subscribe communication protocol that uses TCP/IP sockets or WebSockets. MQTT over WebSockets can be secured with SSL. A client device connects to the MQTT broker and can publish to a channel or subscribe to updates from that channel.

MQTT in MATLAB

We also published a new File Exchange submission that allows you to publish and subscribe using MQTT within MATLAB. Download and install MQTT in MATLAB to be able to connect to ThingSpeak’s MQTT server or connect to other standard MQTT brokers such as AWS IoT. Using this Add-On in MATLAB allows you to define custom functions to evaluate on receiving messages streaming over subscribed topics.

ThingSpeak MQTT Examples

View our ThingSpeak MQTT documentation to learn more about MQTT support on ThingSpeak, and find examples for Arduino, Particle, and Raspberry Pi.

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